Merge pull request #2948 from CyberShadow/pull-20150202-045026

fix Issue 14110 - std.file.read cannot read files open for writing

std/file.d

@@ -227,8 +227,8 @@ void[] read(in char[] name, size_t upTo = size_t.max) @safe
 
         alias defaults =
             TypeTuple!(GENERIC_READ,
-                FILE_SHARE_READ, (SECURITY_ATTRIBUTES*).init, OPEN_EXISTING,
-                FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,
+                FILE_SHARE_READ | FILE_SHARE_WRITE, (SECURITY_ATTRIBUTES*).init,
+                OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,
                 HANDLE.init);
         auto h = trustedCreateFileW(name, defaults);
 
@@ -331,6 +331,15 @@ version (linux) @safe unittest
     //writefln("'%s'", s);
 }
 
+@safe unittest
+{
+    scope(exit) if (exists(deleteme)) remove(deleteme);
+    import std.stdio;
+    auto f = File(deleteme, "w");
+    f.write("abcd"); f.flush();
+    assert(read(deleteme) == "abcd");
+}
+
 /********************************************
 Read and validates (using $(XREF utf, validate)) a text file. $(D S)
 can be a type of array of characters of any width and constancy. No